The Chelsea 680ZQDAX-A3AZ or 680ZQDAXA3AZ is an 8-bolt Power Take-Off from the 680 Series, designed for medium- to heavy-duty manual transmission applications on Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other compatible transmissions. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft and tapered input shaft bearings for strong load-bearing capability. Shift options include wire/cable and mechanical actuation. The series supports 56+ HP output and an intermittent torque range of 301 to 400 lb-ft, with continuous operation available at a 30% de-rating. Common applications include dump trucks, aerial equipment, blowers, refuse trucks, and fire and rescue vehicles. Call us to confirm proper fit for your application.
Features
8-bolt mounting for Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other compatible transmissions
Cast iron housing with tapered cone bearings on the output shaft for long service life
Tapered input shaft bearings for greater load-bearing capability versus needle bearings
Wire/cable or mechanical shift actuation
Supports 56+ HP output; intermittent torque 301-400 lb-ft (series rating)
Suited for aerial, dump truck, blower, refuse, and fire and rescue applications
Tech Specs
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other manual transmissions with 8-bolt PTO aperture
- Shift Type: Wire/Cable or Mechanical
- Output Power: 56+ HP (42+ kW)
- Intermittent Torque (Series): 301-400 lb-ft; check application pages for exact rating
- Continuous Operation: Yes, with 30% de-rating
- Housing Material: Cast iron
- Bearing Type: Tapered cone (output shaft and input shaft)
- Output Options: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
